---Parts Used Medicinally---The root, fresh and dried, the young tops. All parts of the plant contain a somewhat bitter, milky juice (latex), but the juice of the root being still more powerful is the part of the plant most used for medicinal purposes.
---History---The first mention of the Dandelion as a medicine is in the works of the Arabian physicians of the tenth and eleventh centuries, who speak of it as a sort of wild Endive, under the name of Taraxcacon. In this country, we find allusion to it in the Welsh medicines of the thirteenth century. Dandelion was much valued as a medicine in the times of Gerard and Parkinson, and is still extensively employed.
Dandelion roots have long been largely used on the Continent, and the plant is cultivated largely in India as a remedy for liver complaints.
The root is perennial and tapering, simple or more or less branched, attaining in a good soil a length of a foot or more and 1/2 inch to an inch in diameter. Old roots divide at the crown into several heads. The root is fleshy and brittle, externally of a dark brown, internally white and abounding in an inodorous milky juice of bitter, but not disagreeable taste.
Only large, fleshy and well-formed roots should be collected, from plants two years old, not slender, forked ones. Roots produced in good soil are easier to dig up without breaking, and are thicker and less forked than those growing on waste places and by the roadside. Collectors should, therefore only dig in good, free soil, in moisture and shade, from meadow-land. Dig up in wet weather, but not during frost, which materially lessens the activity of the roots. Avoid breaking the roots, using a long trowel or a fork, lifting steadily and carefully. Shake off as much of the earth as possible and then cleanse the roots, the easiest way being to leave them in a basket in a running stream so that the water covers them, for about an hour, or shake them, bunched, in a tank of clean water. Cut off the crowns of leaves, but be careful in so doing not to leave any scales on the top. Do not cut or slice the roots or the valuable milky juice on which their medicinal value depends will be wasted by bleeding.
---Chemical Constituents---The chief constituents of Dandelion root are Taraxacin, acrystalline, bitter substance, of which the yield varies in roots collected at different seasons, and Taraxacerin, an acrid resin, with Inulin (a sort of sugar which replaces starch in many of the Dandelion family, Compositae), gluten, gum and potash. The root contains no starch, but early in the year contains much uncrystallizable sugar and laevulin, which differs from Inulin in being soluble in cold water. This diminishes in quantity during the summer and becomes Inulin in the autumn. The root may contain as much as 24 per cent. In the fresh root, the Inulin is present in the cell-sap, but in the dry root it occurs as an amorphodus, transparent solid, which is only slightly soluble in cold water, but soluble in hot water.
There is a difference of opinion as to the best time for collecting the roots. The British Pharmacopceia considers the autumn dug root more bitter than the spring root, and that as it contains about 25 per cent insoluble Inulin, it is to be preferred on this account to the spring root, and it is, therefore, directed that in England the root should be collected between September and February, it being considered to be in perfection for Extract making in the month of November.
Bentley, on the other hand, contended that it is more bitter in March and most of all in July, but that as in the latter month it would generally be inconvenient for digging it, it should be dug in the spring, when the yield of Taraxacin, the bitter soluble principle, is greatest.
On account of the variability of the constituents of the plant according to the time of year when gathered, the yield and composition of the extract are very variable. If gathered from roots collected in autumn, the resulting product yields a turbid solution with water; if from spring-collected roots, the aqueous solution will be clear and yield but very little sediment on standing, because of the conversion of the Inulin into Laevulose and sugar at this active period of the plant's life.
In former days, Dandelion Juice was the favourite preparation both in official and domestic medicine. Provincial druggists sent their collectors for the roots and expressed the juice while these were quite fresh. Many country druggists prided themselves on their Dandelion Juice. The most active preparations of Dandelion, the Juice (Succus Taraxaci) and the Extract (Extractum Taraxaci), are made from the bruised fresh root. The Extract prepared from the fresh root is sometimes almost devoid of bitterness. The dried root alone was official in the United States Pharmacopoeia.
The leaves are not often used, except for making Herb-Beer, but a medicinal tincture is sometimes made from the entire plant gathered in the early summer. It is made with proof spirit.
When collecting the seeds care should be taken when drying them in the sun, to cover them with coarse muslin, as otherwise the down will carry them away. They are best collected in the evening, towards sunset, or when the damp air has caused the heads to close up.
The tops should be cut on a dry day, when quite free of rain or dew, and all insect-eaten or stained leaves rejected.
---Medicinal Action and Uses---Diuretic, tonic and slightly aperient. It is a general stimulant to the system, but especially to the urinary organs, and is chiefly used in kidney and liver disorders.
Dandelion is not only official but is used in many patent medicines. Not being poisonous, quite big doses of its preparations may be taken. Its beneficial action is best obtained when combined with other agents.
The tincture made from the tops may be taken in doses of 10 to 15 drops in a spoonful of water, three times daily.
It is said that its use for liver complaints was assigned to the plant largely on the doctrine of signatures, because of its bright yellow flowers of a bilious hue.
In the hepatic complaints of persons long resident in warm climates, Dandelion is said to afford very marked relief. A broth of Dandelion roots, sliced and stewed in boiling water with some leaves of Sorrel and the yolk of an egg, taken daily for some months, has been known to cure seemingly intractable cases of chronic liver congestion.
A strong decoction is found serviceable in stone and gravel: the decoction may be made by boiling 1 pint of the sliced root in 20 parts of water for 15 minutes, straining this when cold and sweetening with brown sugar or honey. A small teacupful may be taken once or twice a day.
Dandelion is used as a bitter tonic in atonic dyspepsia, and as a mild laxative in habitual constipation. When the stomach is irritated and where active treatment would be injurious, the decoction or extract of Dandelion administered three or four times a day, will often prove a valuable remedy. It has a good effect in increasing the appetite and promoting digestion.
Dandelion combined with other active remedies has been used in cases of dropsy and for induration of the liver, and also on the Continent for phthisis and some cutaneous diseases. A decoction of 2 OZ. of the herb or root in 1 quart of water, boiled down to a pint, is taken in doses of one wineglassful every three hours for scurvy, scrofula, eczema and all eruptions on the surface of the body.
---Preparations and Dosages---Fluid extract, B.P., 1/2 to 2 drachms. Solid extract, B.P. 5 to 15 grains. Juice, B.P., 1 to 2 drachms. Leontodin, 2 to 4 grains.
---Dandelion Tea---
Infuse 1 OZ. of Dandelion in a pint of boiling water for 10 minutes; decant, sweeten with honey, and drink several glasses in the course of the day. The use of this tea is efficacious in bilious affections, and is also much approved of in the treatment of dropsy.
Or take 2 OZ. of freshly-sliced Dandelion root, and boil in 2 pints of water until it comes to 1 pint; then add 1 OZ. of compound tincture of Horseradish. Dose, from 2 to 4 OZ. Use in a sluggish state of the liver.
Or 1 OZ. Dandelion root, 1 OZ. Black Horehound herb, 1/2 OZ. Sweet Flag root, 1/4 OZ. Mountain Flax. Simmer the whole in 3 pints of water down to 1 1/2 pint, strain and take a wineglassful after meals for biliousness and dizziness.
---For Gall Stones---
1 OZ. Dandelion root, 1 OZ. Parsley root, 1 OZ. Balm herb, 1/2 OZ. Ginger root, 1/2 OZ. Liquorice root. Place in 2 quarts of water and gently simmer down to 1 quart, strain and take a wineglassful every two hours.
For a young child suffering from jaundice: 1 OZ. Dandelion root, 1/2 oz. Ginger root, 1/2 oz. Caraway seed, 1/2 oz. Cinnamon bark, 1/4 oz. Senna leaves. Gently boil in 3 pints of water down to 1 1/2 pint, strain, dissolve 1/2 lb. sugar in hot liquid, bring to a boil again, skim all impurities that come to the surface when clear, put on one side to cool, and give frequently in teaspoonful doses.
---A Liver and Kidney Mixture---
1 OZ. Broom tops, 1/2 oz. Juniper berries, 1/2 oz. Dandelion root, 1 1/2 pint water. Boil in gredients for 10 minutes, then strain and adda small quantity of cayenne. Dose, 1 tablespoonful, three times a day.
---A Medicine for Piles---
1 OZ. Long-leaved Plantain, 1 OZ. Dandelion root, 1/2 oz. Polypody root, 1 OZ. Shepherd's Purse. Add 3 pints of water, boil down to half the quantity, strain, and add 1 OZ. of tincture of Rhubarb. Dose, a wineglassful three times a day. Celandine ointment to be applied at same time.
In Derbyshire, the juice of the stalk is applied to remove warts.
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